Which term describes the process of altering an existing historic resource to accommodate a new use while preserving its valuable features?

The term that describes the process of altering an existing historic resource to accommodate a new use while preserving its valuable features is rehabilitation. Rehabilitation focuses on updating and adapting a historic property for contemporary needs while retaining its historic character and significant physical aspects.

This approach allows for necessary modifications to be made, ensuring the structure can serve a new function without losing its integrity. For example, it might involve updating the building's systems, such as electrical and plumbing, while maintaining original flooring or moldings that contribute to its historic value.

Restoration involves returning a property to a specific period or condition, which may not accommodate modern uses effectively. Preservation aims to maintain and protect existing materials and features without altering them, and reconstruction involves recreating a missing element from historical documentation, which also does not suit the idea of adapting a property for new uses.